[問題] 一道數學題目
如圖,此題解法除了一個一個列出來之外
還有上圖的解法,比較不懂的是,明明題目要問紅球,結果發生機率是放白球,求解:
小弟邏輯不是很好請諒解QAQ
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推
01/10 17:27, , 1F
01/10 17:27, 1F
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01/10 17:32, , 2F
01/10 17:32, 2F
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01/10 17:33, , 3F
01/10 17:33, 3F
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01/10 17:33, , 4F
01/10 17:33, 4F
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01/10 17:37, , 5F
01/10 17:37, 5F
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01/10 17:54, , 6F
01/10 17:54, 6F
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01/10 17:59, , 7F
01/10 17:59, 7F
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01/10 18:00, , 8F
01/10 18:00, 8F
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01/10 18:02, , 9F
01/10 18:02, 9F
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01/10 18:03, , 10F
01/10 18:03, 10F
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01/10 18:04, , 11F
01/10 18:04, 11F
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01/10 18:06, , 12F
01/10 18:06, 12F
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01/10 19:04, , 13F
01/10 19:04, 13F
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01/10 19:04, , 14F
01/10 19:04, 14F
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01/10 19:10, , 15F
01/10 19:10, 15F
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01/10 19:10, , 16F
01/10 19:10, 16F
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01/10 19:47, , 17F
01/10 19:47, 17F
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01/10 23:47, , 18F
01/10 23:47, 18F
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01/10 23:50, , 19F
01/10 23:50, 19F
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01/10 23:50, , 20F
01/10 23:50, 20F
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01/10 23:50, , 21F
01/10 23:50, 21F
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01/11 00:34, , 22F
01/11 00:34, 22F
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01/11 10:24, , 23F
01/11 10:24, 23F
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01/13 02:25, , 24F
01/13 02:25, 24F
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01/13 02:26, , 25F
01/13 02:26, 25F